NBDHE NBDHE Head and Neck Anatomy 3

Question 1

The posterior superior alveolar nerve is a branch of which nerve?

Accepted Answer

Maxillary nerve (V2)

Answer

The posterior superior alveolar nerve branches from the maxillary nerve (V2) before it enters the infraorbital canal, supplying maxillary molars.

Question 2

Which muscle of facial expression closes the eye?

Accepted Answer

Orbicularis oculi

Answer

The orbicularis oculi is the sphincter muscle of the eyelid that closes the eye; its palpebral part closes it gently and the orbital part forcefully.

Question 3

Which bone contains the pterygopalatine fossa?

Accepted Answer

Maxilla and sphenoid

Answer

The pterygopalatine fossa is formed between the posterior surface of the maxilla anteriorly and the pterygoid process of the sphenoid posteriorly.

Question 4

The nasopalatine nerve exits the palate through which foramen?

Accepted Answer

Incisive foramen

Answer

The nasopalatine nerve passes through the incisive foramen to supply the mucosa of the anterior hard palate behind the maxillary incisors.

Question 5

Which cranial nerve provides general somatic afferent innervation to the anterior two-thirds of the tongue?

Accepted Answer

CN V3

Answer

The lingual nerve, a branch of the mandibular nerve (CN V3), provides general somatic afferent (touch, pain, temperature) sensation to the anterior two-thirds of the tongue.

NBDHE Test Practice Test

NBDHE Test Practice Test

NBDHE NBDHE Head and Neck Anatomy 3